Dough sheeting and lapping machine.



PATENTED DEC. 13, 1904:.

J. H. MITCHELL.

DOUGH MEETING AND LAPPING MAG'HINE.

APPLICATION FILED FEB. 20. 190' 5 SHEETS-BHEET 1.

N0 MODEL.

II/YENTUR y ms M. f

4 TTDRNEV.

N0 MODEL.

WENESSES PATENTED DEC. 13, 1904-. J. H. MITCHELL.

DOUGH SHEETING AND LAPPING MAQHINE.

AYPLIUATION I-ILED FEB. 20, 1904- 5 SHEETS-SHEET 2.

M'VENT H W m W PATENTED DEC. 13, 1904.

J. H. MITCHELL.

DOUGH SHEETING AND LAPPING MACHINE.

APPLICATION FILED FEB. 20, 1904.

N0 MODEL.

5 SHEETS-SHEBT 3 i INVENTOR v A; ATTORNEY.

No. 777,349. PATENTED DEC. 13, 1904. J. H. MITCHELL.

DOUGH SHEETING AND LAPPING MACHINE.

APPLICATION FILED FEB. 20. 1904 no MODEL. 5 sums-SHEET 4.

PATENTED DEC. 1.3, 1904.

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J. H. MITCHELL. DOUGH SHEETING AND LAPPING MACHINE.

APPLIOATION FILED FEB. 20, 1904.

NI) MODEL.

UNITED STATES Patented December 13, 1904.

JAMES H. MITCHELL, OF PHILADELPHIA, PENNSYLVANIA.

DOUGH SHEETING AND LAPPING MACHINE.

SPECIFICATION forming part of Letters Patent N0. "777,349, dated December 13, 1904.

Application filed February 20, 1904. Serial No. 194.467- (No model.)

To all whom, it may concern:

Be it known that I, J AMES H. lVIITOI-IELL, a citizen of the United States of America, residing in the city and county of Philadelphia, in the State of Pennsylvania, have invented a certain new and useful Improvement in Dough Sheeting and Lapping Machines, of which the following is a true and exact description, reference being had to the accompanying drawings, which form a part thereof.

My invention relates to mechanism for working dough, and has for its object tOprovide mechanism whereby sheeted dough may be delivered in a folded or lapped condition, the said lapped sheet of dough being afterward resheeted, so as to afford a comparatively thin sheet of dough of a highly-laminated character.

In carrying my invention into effect I make use of sheeting-rolls, which may be of ordinary character, and a traveling apron or carrier upon which the sheet of dough is deposited as it comes from the sheeting-rolls; and the leading feature of novelty of my invention consists in providing mechanical means for guiding the dough onto the apron or carrier in such a way that it is delivered thereon in lapped folds.

The nature of my invention and the mechanism which I have devised for carrying it into practical effect will be best understood as described in connection with the accompanying drawings, in which- Figure 1 is a side elevation of a machine embodying my invention in what I consider to be its most practicable form. Fig. 2 is an end elevation of the said machine; Fig; 3, a central longitudinal sectionon the line 3 3 of Fig. 2; Fig. 4:, an enlarged cross-sectional view of the sheeting-rolls, the carrier or apron, and the oscillating guide which I prefer to use for effecting the lapping of the dough upon the apron. The said view also shows the dough and the manner in which it is delivered to the apron. Fig. 5 is a longitudinal sectional elevation of a modified form of machine, showing another mechanical device for effecting the lapping delivery of the sheet upon the carrier.

' Referring first to the construction shown in Figs. 1 to 4:, A is the frame of the machine; B, the main driving-shaft; B, the driving-pulley. The main driving-shaft has upon it the gear-wheel 13*, (see Fig. 3,) which engages and drives the intermerliate gear B, which in turn engages and drives the gear-wheel B, secured to the shaft 5, to which shaft is also secured the smaller gear B, which engages and drives the gear-wheel B", secured to the shaft 6, to which shaft is also secured the gear B which engages and drives the gear B on the shaft 6". The gear-wheel on shaft S'engages and drives the gear-wheel 0, secured to the shaft 0, which in turn is secured to the swinging frame, (indicated at C C indicating means by which this swinging frame is adjusted and secured in position.

,Another gear-wheel (indicated at C) is also secured on the shaft 0 and engaged with the gear 0 on the shaft 0 said shaft also supporting the gear (indicated at G which engages and drives the gear (indicated at C") on the adjustable shaft 0.

f andf" are the sheeting-rolls secured to the shafts 7) and b, the shaft 6 being rigidly secured to the frame of the machine and the shaft I)" supported in a slide, so as to be horizontally adjustable to vary the distance between the rollsfandf". Theadjustingdevice is shown in Figs. 1, 2, and3 and consists of a shaft Q, supported on the stationary brackets Q, and supporting eccentrics on which are situated the eccentric-strapsQ which by means of rods Q connect with and adjust the bearings for the shaft 5 I) is a casing situated above the rolls f and f, the central part I) forming a dough-hopper, while the compartments D D are charged with flour, so as to constantly impart a cover ing of flour to the sheeting-rolls and prevent the dough sticking to them.

E is a sprocket-wheel secured to the shaft 6 connecting, through a sprocket-chain E, with a sprocket-wheel E, secured to the shaft E to which shaft is also secured the apron or carrier-drum E.

E is a platform running practically tangent to the drum E1 its outer end e being rounded, as shown.

E, IE and E are guide and tension rolls,

the roll E being adjustably supported, as indicated at a E" is an apron or carrier which passes over and is actuated by the drum E, then passes over the platform E turning back over its outer end 6 and passing over the guide and tension rolls again to the drum.

E (see Fig. 3) is a scraper, and E a flourcharged box,the flour being pressed up against the apron while it passes over the drum E by the plunger E partly acted on by the springs E and partly by the adjusting-screw E.

G G, together with the connecting-bars G, securing them together at bottom, constitute the frame of the oscillating sheet-folder which I prefer to employ, parallel frame Gr supporting a series of rolls G and each side of the frame being pivotally secured at the upper ends, (indicated at G G.) As shown, the oscillating sheet-folder is actuated by the mechanism best shown in Fig. 1, a sprocketwheel F being secured to the shaft 6 and connected by a sprocket-chain F with a sprocketwheel F secured on a shaft F which in turn has secured to it a crank F which is by means of a connecting-rod F connected to the frame of the oscillating folding device.

H H are scrapers working in connection with the rolls ff, H indicating springs acting to press the scrapers against the rolls.

1 have shown in the drawings cooperating devices for working and sheeting the folded dough which in themselves are not new and form no part of my present invention. Thus I have shown at P a supplemental table interposed in the table E and over which the carrier E passes, and immediately above this table P is the dough-working roll 1 secured to a shaft 1, which has bearings working in the housing I (indicated in Fig. 3) and caused to work up and down by an eccentric situated on the shaft B and working in connection with an eccentric-ring I, which connects, through an adjustable rod I, with the frame I which pass over the ends of the shaft I, supporting said ends on springs, as indicated at 1 I indicating an adjusting-screw for varying the stroke of the working .roll, and I a flour-box of usual character. I have also shown a pair of sheeting-rolls J and J arranged to receive the sheet of sheeted and folded dough from the apron E, these rolls being secured to the shafts c and 0* and the upper one and its shaft 0 being made adjustable to vary the thickness of the sheet, the adjustment being effected by connecting the bearings of the shaft 0* with.

screws J which are turned through bevelgears J secured to their upper ends by a shaft J, actuated by a hand-wheel J having secured to it bevel-gears J J 8 indicates scrapers by which the sheet of dough is removed from the rolls J and J and delivered to a traveling belt K, running over a drum K.

R is a flour-box by which the upper face of the folded dough is dusted with flour, the box being a shaker supported on the arm R, which in turn has a, block R on its end which rests upon the cams R fastened to shaft 6.

In the modified construction shown in Fig. 5 the oscillating guide working between the sheet-rolls f and f and the apron E is dispensed with and the folding of the sheet of dough is effected by giving to the carrier or apron in addition to its vertical motion an oscillating to-and-fro motion, by which it is made to serve in addition to its function as a transporting device the additional function of a folding or lapping device. In this construction the drum E* and its shaft E, as well as the table E are supported on a longitudinallymovable platform L, which is caused to move back and forward by a crank L secured to a driving-shaft M and connecting to the end of the slide L by a connecting-rod L. I have also indicated in this design a shaft M actuated through bevel-gears i 2 and M by the shaft M and to which shaft are keyed worms M and M, the worms being free to move longitudinally on the shaft to which they are keyed and-being engaged with the slide L, so as to move with it. The worm M engages and drives a gear N, secured to the shaft E and the worm M engages and drives a bevelgear N, secured to the shaft of the lower roll J, which in turn is connected with and drives the shaft of the upper roll J, as in the other construction. In place of having a vertically-reciproeating working roll I have shown in this last modification a working roll i secured to stationary brackets O. I have indicated the dough in the hopper D at S, the sheet delivered from the sheeting-rolls f andf at S, the layers delivered to the traveling apron S and (see Fig. 5) the partly-worked-down layers at S while the final sheet delivered from the rolls J and J is indicated at S.

Having now described my invention, what I claim as new, and desire to secure by Letters Patent, is

1. A dough sheeting and lapping device having in combination means for sheeting dough, a traveling apron to receive the sheeted dough, means whereby the apron is caused to move forward while the dough is fed to it and means acting to deliver the dough on the apron in lapped folds.

2. A dough sheeting an d lapping device having in combination means for sheeting dough, a traveling apron to receive the sheeted dough, means whereby the apron is caused to move forward while the dough is fed to it, means acting to deliver the dough on the apron in lapped folds and rolls other than those feeding the sheet to the apron acting to again sheet the lapped folds of dough delivered to the apron.

3. A dough sheeting and lapping device consisting of a pair of sheeting-rolls in combination with a traveling apron arranged to reoeive the sheeted dough, means whereby the apron is caused to move forward while the dough is fed to it and an oscillating guide through which the sheet of dough passes from the rolls to the apron and whereby it is delivered upon the apron in lapped folds.

4:. A dough sheeting and lapping device consisting of a pair of sheeting-rolls in combinetion with a traveling apron arranged to reoeive the sheeted dough, and an oscillating I0 guide made up of suitably-supported rollers through which the sheet of dough passes from the rolls to the apron and whereby it is delivered upon the apron in lapped folds.

JAMES H. MITCHELL. Witnesses:

CHAS. F. MYERS, D. STEWART. 

